No description available.

The submitted thesis deals with the analysis of selected fish coprolites found in the Loučka site (Moravia; Menilite Fm.). Eleven specimens was selected (provisionally numbered I-XI) of which two were macerated (specimens I and II). The remaining nine specimens were examined at the surface of the sedimentary layers. Recognizable elements were classified to the following taxa: Keasius parvus, Alopias exigua, Squalus cf. alsaticus, Sardinella sardinites, Anenchelum glarisianum, Palimphyes sp., Palaeogadus sp., Gonostomatidae (gen. et. sp. indet.), Perciformes (gen. et sp. indet.), and Teleostei (gen. et sp. indet.). Composition of the studied coprolites I, II and IV suggest that these were produced by shark species Alopias exigua and Squalus cf. alsaticus. Studied coprolites V, VIII, X and XI were produced by some type of undetermined predatory fish (probably piscivore predator). For coprolites III, VI, VII and IX producer can not be determined.

No presente trabalho materiais de microvertebrados coletados no sítio fossilifero de Pirapozinho são descritos. Estão presentes nesta camada materiais fósseis de peixes, quelônios e dentes de dinossauro e crocodilo. Diversos estudos anteriores descreveram e posicionaram filogeneticamente o exemplar mais comum encontrado na localidade, o quelônio fóssil Bauruemys elegans, porém não existem trabalhos sistemáticos voltados para a descrição dos fragmentos presentes no afloramento. Para classificar taxonomicamente os materiais encontrados, foram empregados os materiais depositados em coleções científicas e a informação disponível na literatura. Grande parte do material triado corresponde a fragmentos que não puderam ser utilizados para descrição, pois apresentam considerável desgaste, provavelmente devido ao teor da camada que indica se tratarem de materiais oriundos de eventos de transporte hidráulico, hipótese levantada devido ao empacotamento, abrasão e completa dissociação e desarticulação que se encontram os materiais / In this work microvertebrate materials from Pirapozinho fossiliferous site were colected and described. In this strata are present fóssil material of fish, turtles and teeth of dinosaur and crocodile. Several previous works described and placed phylogenetically the most common specimenfound in this locality, the fóssil turtle Bauruemys elegans, however there are no systematic work focused on the fragments descriptions present in the locality. To classify taxonomically the materials found, were used the materials deposited in scientific collections and in information available in literature. Most of the material screened corresponds to fragments that could not be used for description, because they show considerable wear, probably due to the content of the strata that indicates that these material are related to events of hydraulic transport, hypothesis due to packaging, abrasion and complete dissociation and disarticulation ofthe materials

Les accumulations de petits vertébrés sur les sites archéologiques résultent d’une coprocénose ainsi que de phénomènes post-dépositionnels. La compréhension de l’ensemble des processus est nécessaire pour obtenir une interprétation viable de cette paléocommunauté. L’analyse taphonomique multi-taxons, en se basant sur les micromammifères, les lagomorphes et les oiseaux, permet d’obtenir une caractérisation fine du prédateur. Des référentiels taphonomiques ont été créés. Il s’agit d’une expérimentation sur l’impact du piétinement, d’un référentiel sur les modifications post-dépositionnelles en système karstique et d’un référentiel d’une accumulation de grand-duc. Ces référentiels ont permis une meilleure approche de certaines variables utilisées pour la caractérisation du prédateur, tels que l’isolement des dents, les traces d’altération superficielle et la représentation squelettique. Pour le site de Roc-en-Pail, la méthode multi-taxon a mis en évidence une surreprésentation de trois espèces. Les données paléoécologiques indiquent la présence d’un climat froid avec un paysage ouvert et avec des zones humides. Quant à la Caune de l’Arago, les analyses taphonomiques sur les UA P et R mettent en avant le rôle du grand-duc dans l’accumulation, ce qui induit un biais minime de représentativité. L’apport anthropique de petit gibier a été mis en évidence dans les UA G4, J et Q. D’un point de vue paléoécologique, ce site présente une succession de phases froides et de phases plus clémentes. L’interprétation de ces variations climatiques et leur corrélation aux SIM 12, 13 et 14 est complexe, deux hypothèses pour interpréter l’histoire du remplissage sont discutées. / Accumulations of small vertebrates on archaeological sites result from coprocenose as well as from post-depositionnal phenomena. The comprehension of the whole process is necessary to get a viable interpretation of the corresponding paleocommunity. The multi-taxa taphonomic analysis, based on micromammals, lagomorphs and birds, allows to obtain a precise characterisation of the predator. Taphonomic referentials, were created, they consist of experimentation on the impact of trampling, of a referential on the post-depositionnal modifications in the karstic system as well as of a referential of a great eagle owl accumulation. These referentials allowed to get a better approach of some variables used for the characterisation of the predator, such as the teeth isolation, the superficial alteration marks and the skeleton representation. The application of the multi-taxa method to the fossil assemblages showed an over-representation of three species on the site of Roc-en-Pail. The paleoecological data point out the presence of a cold climate with an open landscape as well as damp zones. For the Caune de l’Arago, the taphonomic analyses on the AU P and R emphasize the role of the great eagle owl, which induces a minimum bias of representativeness. The anthropogenic contribution of small game has been pointed out in the AU G4, J and Q. This site shows a series of cold stages and milder stages. The interpretation of these climatic variations and their correlation to MIS 12, 13 and 14 is complex, two hypotheses are discussed to interpret the infilling.

No presente trabalho materiais de microvertebrados coletados no sítio fossilifero de Pirapozinho são descritos. Estão presentes nesta camada materiais fósseis de peixes, quelônios e dentes de dinossauro e crocodilo. Diversos estudos anteriores descreveram e posicionaram filogeneticamente o exemplar mais comum encontrado na localidade, o quelônio fóssil Bauruemys elegans, porém não existem trabalhos sistemáticos voltados para a descrição dos fragmentos presentes no afloramento. Para classificar taxonomicamente os materiais encontrados, foram empregados os materiais depositados em coleções científicas e a informação disponível na literatura. Grande parte do material triado corresponde a fragmentos que não puderam ser utilizados para descrição, pois apresentam considerável desgaste, provavelmente devido ao teor da camada que indica se tratarem de materiais oriundos de eventos de transporte hidráulico, hipótese levantada devido ao empacotamento, abrasão e completa dissociação e desarticulação que se encontram os materiais / In this work microvertebrate materials from Pirapozinho fossiliferous site were colected and described. In this strata are present fóssil material of fish, turtles and teeth of dinosaur and crocodile. Several previous works described and placed phylogenetically the most common specimenfound in this locality, the fóssil turtle Bauruemys elegans, however there are no systematic work focused on the fragments descriptions present in the locality. To classify taxonomically the materials found, were used the materials deposited in scientific collections and in information available in literature. Most of the material screened corresponds to fragments that could not be used for description, because they show considerable wear, probably due to the content of the strata that indicates that these material are related to events of hydraulic transport, hypothesis due to packaging, abrasion and complete dissociation and disarticulation ofthe materials